Lamp



FIG. 1 is a front view of the lamp;

FIG. 2 is a rear view of the lamp;

FIG. 3 is a left side view of the lamp;

FIG. 4 is a right side view of the lamp;

FIG. 5 is a bottom view of the lamp; and,

FIG. 6 is a top view of the lamp. 

The ornamental design for a lamp, as shown and described. 